Improvement in churn-dashers



i WW Metas-W a safaejiia.

SAMUEL YATES, OF MARSHALL, MISSOURL- Letters Patent No. 83,015, (lated'October 13, 1868.

IMPROVEMENT IN CHURN-DASI-IERS.

The Schedule referred to :ln these Letters Patent and making part of thesame.

To all whom it may .conce/rn:

Be it known that 1', SAMUEL YATEs, of Marshall,

in the county of Saline, and State of Missouri, have invented a new anduseful Improvement in Churn- Dashers; and I do hereby declare that thefollowing is a full, clear, and exactdescription of the construction andoperation of the same, reference being had to the accompanying drawings,making apart of these specifications, in which- Figure 1 is a top view,and

Figure 2 is a central vertical section of the same, as indicated by linex x in fig. 1.

Like letters in the two figures of the drawings indicatelike parts.

Nature.

My invention consists o i' a hollow or tubular churndasher shaft,provided with an air-chamber at the lower end thereof, having a valveopening downward, in combination with a concave perforated dasher, andair-.tubes on the top ofthe dasher connecting with the air-chamber, andthrough which tubes air is conducted down into the cream.

Construction. A represents a hollow shaft, provided with an airchamber,B, at the lower end of the shaft, the airchambcr being larger indiameter, about one-half larger, that is, as one and a half is to one,(1% 1,) than the shaft.

C is a valve, at the upper part of the air-chamber, arranged to opendownward, and resting on an open valve-seat, a. v

D is a concave dashcr, with perforations c o o c.

E 1G E are air-tubes, on the top of the dasher, conlnected at the upperends with the shaft A, for concream. The vupper part of the dasher D isjoined airtight to the lower end of the air-chamber B, s0 that the' airmay be forced through' the tubes E. The dotted lines in g. 1 indicatethe open valve-seat.

Operation.

As the dasher is plunged into the cream, the valve is forced up, closingthe hollow shaft, and the air is forced from the air-chamber, throughthe tubes E, down into the cream. The upward motionof the dasher opens.the valve downward, allowing the airchamber to fill again with air,which, by the downward motion, is forced as before into the cream. Thusthe cream, and by actual experiment with a dashe'r minutes. v

The red arrows in fig. 2 clearly indicate the direction of the air,through the shaft and valve, into the chanber, and from the'chamberthrough the tubes inte the cream.

' Claims.

D. MEGUILLET.

' ducting the air from the air-chamber down into the currents of air arebeing constantly pumped through' thus constructed, butter has beenproduced in three

